dear sir/miss, good time ,kindly like to know about the cost for the hksar and china business visa.

The fee for a regular Hong Kong visa is about HKD160.
The China visa is charged according to the entries, not visa types. The more entries you are going to apply, the more you need to pay. I'm not clear about the more detailed info. You may contact the embassy directly for it: Tel: +9821-22296172 (Manned Service)
+9821-22812500, 22816600 (Answering Service)